The nature of cognitive and neurophysiological deficits of dyslexia have been under debate for a long time. Recently, a new hypothesis for developmental dyslexia -- noise exclusion deficit hypothesis, was proposed and was supported by a number of empirical research evidence from alphabetic languages. It has been found that dyslexia exhibited noise exclusion deficits not only in visual domain but also in auditory domain, indicating a multisensory or domain-general noise exclusion deficit. Alternatively, noise exclusion deficit of dyslexia was also argued to be mainly derived from attention deficit. Yet, some critical issues are still required to be addressed in the future, such as whether noise exclusion deficit presents in Chinese developmental dyslexia.